Plants of St. Vrain State Park

Smooth Horsetail
Equisetum laevigatum 1
Alfalfa
Medicago sativa 1
white sweet clover
Melilotus albus 2
yellow sweet clover
Melilotus officinalis 2
wild licorice
Glycyrrhiza lepidota 3
desert false indigo
Amorpha fruticosa 4
Rough Cinquefoil
Potentilla norvegica 5
Sulphur Cinquefoil
Potentilla recta 6
American Plum
Prunus americana 7
Russian Olive
Elaeagnus angustifolia 8
swamp milkweed
Asclepias incarnata 9
showy milkweed
Asclepias speciosa 10
hemp dogbane
Apocynum cannabinum 11
Texas Bluebell
Eustoma grandiflorum 12
common purslane
Portulaca oleracea 13
Grassland Pricklypear
Opuntia cymochila 14
brittle prickly-pear
Opuntia fragilis 15
Plains Pricklypear
Opuntia polyacantha 16
plains prickly pear
Opuntia macrorhiza 17
pale smartweed
Persicaria lapathifolia 3
spotted lady's thumb
Persicaria maculosa 18
Douglas' knotweed
Polygonum douglasii 19
Oval Leaf Knotweed
Polygonum arenastrum 20
Black-bindweed
Fallopia convolvulus 21
Tall Dock
Rumex altissimus 22
curly dock
Rumex crispus 23
White willow dock
Rumex triangulivalvis 19
common soapwort
Saponaria officinalis 5
Greater Sea-spurry
Spergularia media 24
red tamarisk
Tamarix ramosissima 25
pitseed goosefoot
Chenopodium berlandieri 1
Leafy Goosefoot
Chenopodium foliosum 26
Oak-leaved goosefoot
Chenopodium glaucum 27
mealy goosefoot
Chenopodium incanum 28
Red Goosefoot
Chenopodium rubrum 29
Redroot Pigweed
Amaranthus retroflexus 30
Fivehorn smotherweed
Bassia hyssopifolia 31
Kochia
Bassia scoparia 32
Slender Russian-thistle
Salsola collina 33
Prickly Russian Thistle
Salsola tragus 28
Canada thistle
Cirsium arvense 34
spear thistle
Cirsium vulgare 35
musk thistle
Carduus nutans 36
lesser burdock
Arctium minus 37
Cotton Thistle
Onopordum acanthium 38
Russian knapweed
Leuzea repens 39
diffuse knapweed
Centaurea diffusa 40
chicory
Cichorium intybus 4
common dandelion
Taraxacum officinale 41
Perennial Sow Thistle
Sonchus arvensis 42
prickly lettuce
Lactuca serriola 43
yellow salsify
Tragopogon dubius 44
Cottonbatting plant
Pseudognaphalium stramineum 45
Rubber Rabbitbrush
Ericameria nauseosa 1
Canada goldenrod
Solidago canadensis 2
Smooth White Aster
Symphyotrichum porteri 46
Eaton's aster
Symphyotrichum bracteolatum 47
Horseweed
Conyza canadensis 48
curlycup gumweed
Grindelia squarrosa 8
Tahoka daisy
Machaeranthera tanacetifolia 49
devil's beggartick
Bidens frondosa 50
Marsh Elder
Cyclachaena xanthifolia 47
Western ragweed
Ambrosia psilostachya 51
Annual ragweed
Ambrosia artemisiifolia elatior 52
rough cocklebur
Xanthium strumarium 53
upright prairie coneflower
Ratibida columnifera 54
common sunflower
Helianthus annuus 55
cowpen daisy
Verbesina encelioides 56
great blanketflower
Gaillardia aristata 57
Indian blanket
Gaillardia pulchella 58
redstem filaree
Erodium cicutarium 59
Fragrant sumac
Rhus aromatica 60
Skunkbush Sumac
Rhus trilobata 61
Great Willowherb
Epilobium hirsutum 44
muchbranched groundsmoke
Gayophytum ramosissimum 3
Grand Ammannia
Ammannia robusta 62
moth mullein
Verbascum blattaria 1
great mullein
Verbascum thapsus 2
Field mint
Mentha arvensis 63
American Bugleweed
Lycopus americanus 8
Rough Bugleweed
Lycopus asper 8
Catnip
Nepeta cataria 64
prostrate vervain
Verbena bracteata 28
blue vervain
Verbena hastata 8
Balkan toadflax
Linaria dalmatica 28
common toadflax
Linaria vulgaris 8
Hairy purslane speedwell
Veronica peregrina 65
chain speedwell
Veronica catenata 29
Greater plantain
Plantago major 66
thistle poppy
Argemone polyanthemos 67
cursed crowfoot
Ranunculus sceleratus 3
jimsonweed
Datura stramonium 68
long-leaved groundcherry
Physalis longifolia 69
Hoe Nightshade
Solanum physalifolium 70
buffalo bur
Solanum rostratum 8
cutleaf nightshade
Solanum triflorum 24
field bindweed
Convolvulus arvensis 71
Fuller's teasel
Dipsacus fullonum 72
Velvetleaf
Abutilon theophrasti 73
dwarf mallow
Malva neglecta 74
eastern cottonwood
Populus deltoides 75
Crack Willow
Salix fragilis 1
Narrowleaf Willow
Salix exigua 1
Snow-on-the-mountain
Euphorbia marginata 76
puncture vine
Tribulus terrestris 3
Alyssum
Alyssum simplex 44
Heart-podded Hoary Cress
Lepidium draba 77
broadleaved pepperweed
Lepidium latifolium 78
clasping pepperweed
Lepidium perfoliatum 79
Field Penny-cress
Thlaspi arvense 29
western tansy mustard
Descurainia pinnata 1
flixweed
Descurainia sophia 80
tumble mustard
Sisymbrium altissimum 19
golden currant
Ribes aureum 81
White-stemmed gooseberry
Ribes inerme 82
Hardstem bulrush
Schoenoplectus acutus 28
Common Three-Square
Schoenoplectus pungens 83
Softstem Bulrush
Schoenoplectus tabernaemontani 84
sea clubrush
Bolboschoenus maritimus 85
Emory's Sedge
Carex emoryi 86
Northwest Territory sedge
Carex utriculata 87
Spikeletrush sedge
Carex duriuscula 88
Field sedge
Carex praegracilis 89
Pale Spikerush
Eleocharis macrostachya 90
Barnyardgrass
Echinochloa crus-galli 91
Yellow Foxtail
Setaria glauca 92
witch grass
Panicum capillare 93
Switchgrass
Panicum virgatum 94
Ticklegrass
Agrostis scabra 1
Creeping Bent
Agrostis stolonifera 1
rabbitfoot grass
Polypogon monspeliensis 95
Nuttall's alkali grass
Puccinellia nuttalliana 96
orchard grass
Dactylis glomerata 97
Tall Fescue
Festuca arundinacea 98
Reed Canarygrass
Phalaris arundinacea 98
Prairie Bluegrass
Poa arida 99
Flattened Meadow-grass
Poa compressa 100
Kentucky bluegrass
Poa pratensis 84
short-awn foxtail
Alopecurus aequalis 1
Japanese brome
Bromus japonicus 101
cheatgrass
Bromus tectorum 84
Russian Wildrye
Psathyrostachys juncea 96
Intermediate Wheatgrass
Thinopyrum intermedium 102
Western Wheatgrass
Pascopyrum smithii 103
Streamside Wild Rye
Elymus lanceolatus 1
Slender wheat grass
Elymus trachycaulus 91
Foxtail Barley
Hordeum jubatum 104
crested wheatgrass
Agropyron cristatum 105
common reed
Phragmites australis 106
Purple Pampas Grass
Cortaderia jubata 107
prairie cordgrass
Sporobolus michauxianus 108
alkali sacaton
Sporobolus airoides 109
sand dropseed
Sporobolus cryptandrus 1
Stinkgrass
Eragrostis cilianensis 93
Blue Grama
Bouteloua gracilis 110
Salt Grass
Distichlis spicata 111
Narrow-leaved cattail
Typha angustifolia 112
Broad-leaved cattail
Typha latifolia 113
Baltic Rush
Juncus balticus 98
Slender Rush
Juncus tenuis 1
Torrey's Rush
Juncus torreyi 114
wild asparagus
Asparagus officinalis 115
Common duckweed
Lemna minor 100
Photos:
  • 1. (c) Matt Lavin, some rights reserved (CC BY-SA)
  • 2. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
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